Letter of credit (LC)
A letter of credit (LC) is a financial instrument issued by a bank that guarantees a seller will receive payment from a buyer, provided the seller meets specified terms and conditions. It serves as a payment mechanism in international trade and other transactions where trust between parties may be limited.
What is a Letter of Credit (LC)?
A letter of credit (LC) is a financial instrument issued by a bank that guarantees a seller will receive payment from a buyer, provided the seller meets specified terms and conditions. It serves as a payment mechanism in international trade and other transactions where trust between parties may be limited. By involving a reputable financial institution, an LC mitigates risk for both the buyer and the seller.
The issuance of an LC typically occurs when a buyer wishes to purchase goods or services from a seller, especially across international borders. The buyer’s bank (issuing bank) provides the LC to the seller, assuring them that payment will be made upon presentation of compliant documents. This commitment reduces the seller’s risk of non-payment, encouraging them to proceed with the transaction.
For the buyer, an LC ensures that they will only pay for the goods or services once the seller has fulfilled their obligations as evidenced by the submitted documentation. This protects the buyer from potential fraud or non-delivery. The process is governed by standardized rules, most notably the Uniform Customs and Practice for Documentary Credits (UCP) published by the International Chamber of Commerce (ICC).
A letter of credit (LC) is a bank’s written commitment to pay a seller on behalf of a buyer, provided that the seller presents specified documents that comply with the terms and conditions of the LC.
Key Takeaways
- An LC is a bank-issued guarantee of payment to a seller, conditional on the seller meeting predefined terms.
- It primarily serves to reduce risk in transactions, particularly in international trade, by substituting the bank’s creditworthiness for that of the buyer.
- Both buyers and sellers benefit: sellers are assured of payment, and buyers are assured that payment is only made upon fulfillment of obligations.
- The process relies on the strict adherence to terms and the presentation of compliant documentation.
Understanding Letter of Credit (LC)
A letter of credit functions as a contract involving at least three parties: the buyer (applicant), the seller (beneficiary), and the issuing bank. Often, a second bank, the advising bank or confirming bank, also plays a role, typically located in the seller’s country. The issuing bank, acting on the buyer’s request, commits to paying the seller once the seller presents the required documents to the bank.
These documents can include bills of lading, commercial invoices, customs declarations, inspection certificates, and insurance policies, among others. The LC specifies precisely what documents are needed and the conditions under which they must be presented. If the documents conform to the LC’s terms, the issuing bank is obligated to honor the payment, irrespective of the buyer’s willingness or ability to pay at that moment. This separation of the financial transaction from the physical movement of goods is crucial.
The complexity and cost of an LC make it more suitable for significant transactions where assurance is paramount. Banks charge fees for issuing and handling LCs, reflecting the administrative effort and the credit risk they undertake. The Uniform Customs and Practice for Documentary Credits (UCP 600) provides the international standard for interpreting and applying LCs.
Formula
There is no direct mathematical formula for a letter of credit itself, as it is a financial instrument and a contractual agreement. However, the cost associated with an LC can be estimated based on:
LC Fee = (LC Value * Applicable Rate * Time Period) + Other Charges
Where:
- LC Value is the total amount guaranteed by the letter of credit.
- Applicable Rate is the fee percentage charged by the bank (e.g., basis points per quarter or year).
- Time Period is the duration for which the LC is valid or the period the bank’s commitment is active.
- Other Charges may include amendment fees, negotiation fees, or discrepancies fees.
Real-World Example
Consider a U.S. importer (Buyer Inc.) wanting to purchase specialized machinery from a German exporter (Seller GmbH). Seller GmbH is hesitant to ship without assurance of payment, and Buyer Inc. wants to ensure they receive the correct machinery before payment is released. Buyer Inc. applies to its U.S. bank for an LC.
Buyer Inc.’s bank issues an LC for $500,000, specifying that payment will be made to Seller GmbH upon presentation of documents including the bill of lading (proving shipment), a commercial invoice, and a certificate of origin, all conforming to the LC’s terms. The LC also details the shipment date and expiry date. Seller GmbH, upon shipment and gathering the required documents, presents them to its bank, which forwards them to Buyer Inc.’s bank. Buyer Inc.’s bank reviews the documents; if compliant, it releases the funds to Seller GmbH and debits Buyer Inc.’s account or extends credit.
Importance in Business or Economics
Letters of credit are vital for facilitating international trade, reducing transaction risks for businesses. They enable cross-border commerce by providing a reliable payment mechanism, fostering trust between parties who may not know each other. By guaranteeing payment, LCs encourage trade, allowing businesses to expand their markets and access goods and services globally.
For developing economies, LCs can be crucial in accessing international markets and securing necessary imports. They also play a role in domestic transactions, such as real estate deals or large project financing, where a guarantee of payment is required. The LC system underpins a significant portion of global commerce by providing payment security.
Types or Variations
There are several types of LCs, each tailored to specific transaction needs:
- Revocable vs. Irrevocable: An irrevocable LC cannot be amended or canceled without the consent of all parties, offering greater security. A revocable LC can be changed, making it less secure and less common.
- Confirmed vs. Unconfirmed: A confirmed LC has a second bank (usually in the seller’s country) guaranteeing payment in addition to the issuing bank. An unconfirmed LC relies solely on the issuing bank’s guarantee.
- Standby LC (SBLC): This acts as a secondary payment mechanism or a performance guarantee. It is typically used when payment is not expected but serves as a backup if the primary obligations are not met.
- Transferable LC: Allows the beneficiary to transfer some or all of the LC’s benefits to a third party, useful for intermediaries.
- Revolving LC: Used for ongoing supply contracts, allowing multiple shipments and payments over a period up to a specified limit.
Related Terms
- Bill of Lading
- Documentary Collection
- International Trade Finance
- Standby Letter of Credit
- Uniform Customs and Practice for Documentary Credits (UCP)
- Bank Guarantee
Sources and Further Reading
- International Chamber of Commerce (ICC): https://iccwbo.org/
- Investopedia – Letter of Credit: https://www.investopedia.com/terms/l/letterofcredit.asp
- Federal Reserve – Payments System Research: https://www.frbservices.org/center/payments/index.html
Quick Reference
Term: Letter of Credit (LC)
Issuing Entity: Bank
Primary Function: Payment guarantee in trade and commercial transactions.
Key Parties: Applicant (Buyer), Beneficiary (Seller), Issuing Bank, Advising/Confirming Bank.
Governing Rules: UCP 600 (Uniform Customs and Practice for Documentary Credits).
Frequently Asked Questions (FAQs)
What is the difference between a letter of credit and a bank guarantee?
A letter of credit is primarily a payment instrument guaranteeing payment upon fulfillment of stipulated documentary conditions. A bank guarantee, conversely, is typically a secondary obligation; the bank steps in only if the primary party defaults, and it doesn’t necessarily require specific documents for payment. LCs are more about assuring payment for goods/services, while guarantees often cover performance or obligation fulfillment.
What happens if the documents presented under an LC do not comply?
If the documents presented by the seller do not strictly comply with the terms and conditions of the letter of credit, the issuing bank is not obligated to pay. The bank may notify the seller of the discrepancies and seek instructions from the buyer. The buyer can then choose to waive the discrepancies and authorize payment, or reject the documents, in which case the seller would not be paid under the LC.
Who pays the fees for a letter of credit?
Typically, the applicant (the buyer) is responsible for paying all fees associated with a letter of credit, including the issuing bank’s fees, any fees charged by the advising or confirming bank, and potential amendment fees. However, the specific fee arrangement can be negotiated and may be reflected in the overall price of the goods or services.

